20122331031 has 12 divisors (see below), whose sum is σ = 31707915720. Its totient is φ = 12195352080.

The previous prime is 20122331017. The next prime is 20122331059. The reversal of 20122331031 is 13013322102.

It is not a de Polignac number, because 20122331031 - 2²⁹ = 19585460119 is a prime.

It is a super-2 number, since 2×20122331031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20122330995 and 20122331013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122331431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101627836 + ... + 101628033.

It is an arithmetic number, because the mean of its divisors is an integer number (2642326310).

Almost surely, 2^20122331031 is an apocalyptic number.

20122331031 is a deficient number, since it is larger than the sum of its proper divisors (11585584689).

20122331031 is a wasteful number, since it uses less digits than its factorization.

20122331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203255886 (or 203255883 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20122331031 its reverse (13013322102), we get a palindrome (33135653133).

It can be divided in two parts, 20122 and 331031, that added together give a palindrome (351153).

The spelling of 20122331031 in words is "twenty billion, one hundred twenty-two million, three hundred thirty-one thousand, thirty-one".